适用于工业无线WIA-PA网络的负载均衡成簇方法  

Load-Balanced Clustering Scheme for WIA-PA Industrial Wireless Networks

作　　者：王恒[1] 夏枢洋 王平[1] 

机构地区：[1]重庆邮电大学工业物联网与网络化控制教育部重点实验室,重庆400065

出　　处：《北京邮电大学学报》2017年第2期29-35,42,共8页Journal of Beijing University of Posts and Telecommunications

基　　金：国家高技术研究发展计划(863计划)项目(2015AA043801);重庆市教委科学技术研究项目(KJ1500413);重庆市基础与前沿研究计划项目(cstc2015jcyj A40023)

摘　　要：针对用于工业过程自动化的无线网络(WIA-PA)在部署过程中存在的簇首数据负载分布不均衡问题,提出了一种支持负载均衡的新型成簇方法.根据WIA-PA的网络特征建立周期性数据吞吐量模型,通过改进WIA-PA网络的簇首选择算法和现场设备的入网流程,使现场设备入网时优先选择吞吐量相对小的路由器作为簇首,实现了网络拓扑结构依据流量自适应调整的成簇策略.测试结果表明,该方法在均衡簇首数据负载、平衡簇首能耗、延长网络生命周期等方面取得了良好效果.For the imbalance issue of data transmission among cluster-heads in wireless networks for industrial automation-process automation （WIA-PA）, a new load-balanced clustering scheme is presented.A periodic data throughput model is firstly established based on WIA-PA network characteristics.Then a cluster-head selection algorithm and an improved joining method for field devices is proposed.The field devices prefer to select the router with the minimum throughput as their cluster-head,so as to adjust network topology adaptively according to the data traffic.The tests show that the proposed scheme can effectively balance the data traffic and energy consumption among cluster-heads,and extend the lifetime of WIA-PA networks.

关 键 词：工业无线技术 工业网络 负载均衡 成簇方法 

分 类 号：TN393.1[电子电信—物理电子学]